Apart from me getting error messages similar to the one on #25, I feel there is something missing between E11 and E12 (like there is a fast forward).
E11 says the robot can't see red, and then asks the Learner if he/she can help it see red.
E12 just jumps to a challenge straight away. This assumes the learner understands the color channels in an image.
There should be additional content on how images are really seen.
Apart from me getting error messages similar to the one on #25, I feel there is something missing between E11 and E12 (like there is a fast forward). E11 says the robot can't see red, and then asks the Learner if he/she can help it see red. E12 just jumps to a challenge straight away. This assumes the learner understands the color channels in an image. There should be additional content on how images are really seen.